 <header>
      <nav class="navbar navbar-default navbar-fixed-top">
        <div class="container-fluid">
          <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1"
              aria-expanded="false"> <span class="sr-only">切换导航</span> <span class="icon-bar"></span> <span class="icon-bar"></span>
              <span class="icon-bar"></span> </button>
            <a class="navbar-brand" href="/">YlsatCMS</a> </div>
          <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav navbar-right">
              <li><a>消息 <span class="badge">1</span></a></li>
              <li class="dropdown"> <a class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                  aria-expanded="false">晨泽熙管理系统 <span class="caret"></span></a>
                <ul class="dropdown-menu dropdown-menu-left">
                  <li><a title="查看或修改个人信息" data-toggle="modal" data-target="#seeUserInfo">个人信息</a></li>
                  <li><a title="查看您的登录记录" data-toggle="modal" data-target="#seeUserLoginlog">登录记录</a></li>
                </ul>
              </li>
              <li><a href="" onClick="if(!confirm('是否确认退出？'))return false;">退出登录</a></li>
              <li><a data-toggle="modal" data-target="#WeChat">帮助</a></li>
            </ul>
            <form action="" method="post" class="navbar-form navbar-right" role="search">
              <div class="input-group">
                <input type="text" class="form-control" autocomplete="off" placeholder="键入关键字搜索" maxlength="15">
                <span class="input-group-btn">
                  <button class="btn btn-default" type="submit">搜索</button>
                </span> </div>
            </form>
          </div>
        </div>
      </nav>
</header>